Practical Iron Founding |
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alumina arms Bar iron blast bolted boss bricks carbon cast iron centre chaplets coke cope cope and drag core corebox cottared cranes cupola curved cylinder depth diameter dimensions drag dried dry sand edges facing sand fitted flange flasks floor foundry fracture frame gear graphite gray iron green sand half hand head heavy holes hydraulic inches ingate jib crane joint face ladle laid lever lift table lifted lifters loam moulds lower melting metal method mixtures moulder moulding box moulding machines nails pattern plate pins pipes portions pouring basin presser board pressure pulley rammed rapping ribs risers rods round runner screwed shaft shown in Fig shrinkage side sieves square stove strickle stripping plate sufficient suitable surface teeth thickness tion top face turn-over turned tuyeres upper vents vertical weight wheel wood
Popular passages
Page 394 - RULE. — From half the sum of the three sides, subtract each side separately; multiply the half -sum and the three remainders together; the square root of the product is the area.
Page 394 - Find the area of each circle, and subtract the area of the inner circle from the area of the outer circle.
Page 34 - There is but one way in which it can be done, and that is by offering her justice.
Page 394 - POLYGONS. Polygons, being composed of triangles, may of course be similarly measured; hence, in regular polygons, multiply the length of a side by the perpendicular height to the centre, and by the number of sides, and half the product is the area. MENSURATION. S"ls< «•
Page 394 - ... is the area. To find the area of any quadrilateral figure. Divide the quadrilateral into two triangles ; the sum of the areas of the triangles is the area. Or, multiply half the product of the two diagonals by the natural sine of the angle at their intersection.
Page 394 - ... is the area. To find the area of any polygon. Divide the polygon into triangles and trapezoids by drawing diagonals ; find the areas of these as above shown, for the area. To find the area of a regular; polygon. Multiply half the perimeter of the polygon by the perpendicular drawn from the centre to one of the sides.
Page 402 - Decimal Equivalents to Fractional Parts of Lineal Measures. One inch, the integer .or whole number.
Page 323 - ... cribbing after the manner employed for steam hammers. EFFICIENCY DEPENDS UPON THE ANVIL 22. So cushioned, the anvil when struck by a loaded table of its own weight will suddenly acquire one-half of the velocity of the table at the instant of impact, after which both table and anvil will be brought to rest by the yielding resistance of the timber cribbing, and they will then be returned by its elasticity to their normal position. The loaded table, in this case, loses at the instant of impact only...
Page 120 - The holes will range from the size of a pin•s head to that of a pea or a hazelnut.
Page 6 - Mack, strong, weak, core, facing, burnt, parting, road sands, have exclusive reference to mixtures, and physical conditions; none whatever to geological character, or to locality. Sand is green when the mixture is used in its natural condition, that is, damp, or mixed with just sufficient water to render it coherent. Immediately after the pattern...